The Extreme Mustang Makeover Challenge is an annual contest that dares 100 people to each tame a totally wild mustang in order to get it adopted into a better life beyond federal corrals.The Extreme Mustang Makeover Challenge is an annual contest that dares 100 people to each tame a totally wild mustang in order to get it adopted into a better life beyond federal corrals.The Extreme Mustang Makeover Challenge is an annual contest that dares 100 people to each tame a totally wild mustang in order to get it adopted into a better life beyond federal corrals.